swayfx/swaybar/bar.c
Calvin Lee 33fdae2001 Remove Xembed Support
Xembed support is premature in sway and should be postponed. This commit
only removes swaybar starting xembedsniproxy, if users would like, they
can still start xembedsniproxy manually, however there will be no
official support.
2017-06-13 12:42:11 -07:00

332 lines
8 KiB
C

#define _XOPEN_SOURCE 500
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/wait.h>
#include <signal.h>
#include <poll.h>
#ifdef ENABLE_TRAY
#include <dbus/dbus.h>
#include "swaybar/tray/sni_watcher.h"
#include "swaybar/tray/tray.h"
#include "swaybar/tray/sni.h"
#endif
#include "swaybar/ipc.h"
#include "swaybar/render.h"
#include "swaybar/config.h"
#include "swaybar/status_line.h"
#include "swaybar/event_loop.h"
#include "swaybar/bar.h"
#include "ipc-client.h"
#include "list.h"
#include "log.h"
static void bar_init(struct bar *bar) {
bar->config = init_config();
bar->status = init_status_line();
bar->outputs = create_list();
}
static void spawn_status_cmd_proc(struct bar *bar) {
if (bar->config->status_command) {
int pipefd[2];
if (pipe(pipefd) != 0) {
sway_log(L_ERROR, "Unable to create pipe for status_command fork");
return;
}
bar->status_command_pid = fork();
if (bar->status_command_pid == 0) {
close(pipefd[0]);
dup2(pipefd[1], STDOUT_FILENO);
close(pipefd[1]);
char *const cmd[] = {
"sh",
"-c",
bar->config->status_command,
NULL,
};
execvp(cmd[0], cmd);
return;
}
close(pipefd[1]);
bar->status_read_fd = pipefd[0];
fcntl(bar->status_read_fd, F_SETFL, O_NONBLOCK);
}
}
struct output *new_output(const char *name) {
struct output *output = malloc(sizeof(struct output));
output->name = strdup(name);
output->window = NULL;
output->registry = NULL;
output->workspaces = create_list();
#ifdef ENABLE_TRAY
output->items = create_list();
#endif
return output;
}
static void mouse_button_notify(struct window *window, int x, int y,
uint32_t button, uint32_t state_w) {
sway_log(L_DEBUG, "Mouse button %d clicked at %d %d %d", button, x, y, state_w);
if (!state_w) {
return;
}
struct output *clicked_output = NULL;
for (int i = 0; i < swaybar.outputs->length; i++) {
struct output *output = swaybar.outputs->items[i];
if (window == output->window) {
clicked_output = output;
break;
}
}
if (!sway_assert(clicked_output != NULL, "Got pointer event for non-existing output")) {
return;
}
double button_x = 0.5;
for (int i = 0; i < clicked_output->workspaces->length; i++) {
struct workspace *workspace = clicked_output->workspaces->items[i];
int button_width, button_height;
workspace_button_size(window, workspace->name, &button_width, &button_height);
button_x += button_width;
if (x <= button_x) {
ipc_send_workspace_command(workspace->name);
break;
}
}
#ifdef ENABLE_TRAY
tray_mouse_event(clicked_output, x, y, button, state_w);
#endif
}
static void mouse_scroll_notify(struct window *window, enum scroll_direction direction) {
sway_log(L_DEBUG, "Mouse wheel scrolled %s", direction == SCROLL_UP ? "up" : "down");
if (!swaybar.config->wrap_scroll) {
// Find output this window lives on
int i;
struct output *output = NULL;
for (i = 0; i < swaybar.outputs->length; ++i) {
output = swaybar.outputs->items[i];
if (output->window == window) {
break;
}
}
if (!sway_assert(i != swaybar.outputs->length, "Unknown window in scroll event")) {
return;
}
int focused = -1;
for (i = 0; i < output->workspaces->length; ++i) {
struct workspace *ws = output->workspaces->items[i];
if (ws->focused) {
focused = i;
break;
}
}
if (!sway_assert(focused != -1, "Scroll wheel event received on inactive output")) {
return;
}
if ((focused == 0 && direction == SCROLL_UP) ||
(focused == output->workspaces->length - 1 && direction == SCROLL_DOWN)) {
// Do not wrap
return;
}
}
const char *workspace_name = direction == SCROLL_UP ? "prev_on_output" : "next_on_output";
ipc_send_workspace_command(workspace_name);
}
void bar_setup(struct bar *bar, const char *socket_path, const char *bar_id) {
/* initialize bar with default values */
bar_init(bar);
/* Initialize event loop lists */
init_event_loop();
/* connect to sway ipc */
bar->ipc_socketfd = ipc_open_socket(socket_path);
bar->ipc_event_socketfd = ipc_open_socket(socket_path);
ipc_bar_init(bar, bar_id);
int i;
for (i = 0; i < bar->outputs->length; ++i) {
struct output *bar_output = bar->outputs->items[i];
bar_output->registry = registry_poll();
if (!bar_output->registry->desktop_shell) {
sway_abort("swaybar requires the compositor to support the desktop-shell extension.");
}
struct output_state *output = bar_output->registry->outputs->items[bar_output->idx];
bar_output->window = window_setup(bar_output->registry,
output->width / output->scale, 30, output->scale, false);
if (!bar_output->window) {
sway_abort("Failed to create window.");
}
desktop_shell_set_panel(bar_output->registry->desktop_shell,
output->output, bar_output->window->surface);
desktop_shell_set_panel_position(bar_output->registry->desktop_shell,
bar->config->position);
window_make_shell(bar_output->window);
/* set font */
bar_output->window->font = bar->config->font;
/* set mouse event callbacks */
bar_output->window->pointer_input.notify_button = mouse_button_notify;
bar_output->window->pointer_input.notify_scroll = mouse_scroll_notify;
/* set window height */
set_window_height(bar_output->window, bar->config->height);
}
/* spawn status command */
spawn_status_cmd_proc(bar);
#ifdef ENABLE_TRAY
init_tray(bar);
#endif
}
bool dirty = true;
static void respond_ipc(int fd, short mask, void *_bar) {
struct bar *bar = (struct bar *)_bar;
sway_log(L_DEBUG, "Got IPC event.");
dirty = handle_ipc_event(bar);
}
static void respond_command(int fd, short mask, void *_bar) {
struct bar *bar = (struct bar *)_bar;
dirty = handle_status_line(bar);
}
static void respond_output(int fd, short mask, void *_output) {
struct output *output = (struct output *)_output;
if (wl_display_dispatch(output->registry->display) == -1) {
sway_log(L_ERROR, "failed to dispatch wl: %d", errno);
}
}
void bar_run(struct bar *bar) {
add_event(bar->ipc_event_socketfd, POLLIN, respond_ipc, bar);
add_event(bar->status_read_fd, POLLIN, respond_command, bar);
int i;
for (i = 0; i < bar->outputs->length; ++i) {
struct output *output = bar->outputs->items[i];
add_event(wl_display_get_fd(output->registry->display),
POLLIN, respond_output, output);
}
while (1) {
if (dirty) {
int i;
for (i = 0; i < bar->outputs->length; ++i) {
struct output *output = bar->outputs->items[i];
if (window_prerender(output->window) && output->window->cairo) {
render(output, bar->config, bar->status);
window_render(output->window);
wl_display_flush(output->registry->display);
}
}
}
dirty = false;
event_loop_poll();
#ifdef ENABLE_TRAY
dispatch_dbus();
#endif
}
}
void free_workspaces(list_t *workspaces) {
int i;
for (i = 0; i < workspaces->length; ++i) {
struct workspace *ws = workspaces->items[i];
free(ws->name);
free(ws);
}
list_free(workspaces);
}
static void free_output(struct output *output) {
window_teardown(output->window);
if (output->registry) {
registry_teardown(output->registry);
}
free(output->name);
if (output->workspaces) {
free_workspaces(output->workspaces);
}
free(output);
}
static void free_outputs(list_t *outputs) {
int i;
for (i = 0; i < outputs->length; ++i) {
free_output(outputs->items[i]);
}
list_free(outputs);
}
static void terminate_status_command(pid_t pid) {
if (pid) {
// terminate status_command process
int ret = kill(pid, SIGTERM);
if (ret != 0) {
sway_log(L_ERROR, "Unable to terminate status_command [pid: %d]", pid);
} else {
int status;
waitpid(pid, &status, 0);
}
}
}
void bar_teardown(struct bar *bar) {
if (bar->config) {
free_config(bar->config);
}
if (bar->outputs) {
free_outputs(bar->outputs);
}
if (bar->status) {
free_status_line(bar->status);
}
/* close sockets/pipes */
if (bar->status_read_fd) {
close(bar->status_read_fd);
}
if (bar->ipc_socketfd) {
close(bar->ipc_socketfd);
}
if (bar->ipc_event_socketfd) {
close(bar->ipc_event_socketfd);
}
/* terminate status command process */
terminate_status_command(bar->status_command_pid);
}